https://www.syu.ac.kr/ecw/2024/07/29/%ed%95%99%ec%9c%84%eb%85%bc%eb%ac%b8-%ea%b4%80%eb%a0%a8-%ec%9e%91%ec%84%b1%ec%a7%80%ec%b9%a8-%eb%b0%8f-%ec%a0%9c%ec%b6%9c%ec%84%9c%eb%a5%98-%ec%96%91%ec%8b%9d/